<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avator_box">
        <img src="../assets/logo.png"
             alt="">
      </div>
      <!-- 登录表单区域 -->
      <el-form class="login_form"
               :model="loginForm"
               :rules="loginFormRules"
               ref="loginFormRef">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="el-icon-user-solid"
                    v-model="loginForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input prefix-icon="el-icon-lock"
                    type="password"
                    v-model="loginForm.password"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary"
                     @click="login">登录</el-button>
          <el-button type="info"
                     @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import getLogin from '../network/login';
export default {
  name: 'Login',
  data () {
    return {
      //登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //表单的验证规则对象
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    //点击重置按钮，重置登录表单
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields();
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        //console.log(valid);
        if (!valid) return;
        const res = await getLogin(this.loginForm);
        //console.log(res);
        if (res.meta.status !== 200) {
          //console.log('登录失败');
          this.$message.error('登录失败');
        } else {
          //console.log('登录成功');
          this.$message.success('登录成功');
          //将登录成功的token保存到客户端的sessionStorage中
          window.sessionStorage.setItem('token', res.data.token);
          this.$router.push('/home');
        }

      });
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  height: 100%;
  background-color: #2b4b6b;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;

  .avator_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    margin: auto;
    margin-top: -65px;
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  margin-top: 20px;
  padding: 0 20px;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>